Mersen STPT2-30K750V-3PM Type 2 surge protection device with 30 kA Imax, 690 V IT / 690-1000 V TNC nominal voltage, 750 V AC maximum continuous operating voltage, pluggable DIN rail construction and remote indication.
£156.39
The Mersen STPT2-30K750V-3PM (Part Number 83020103) is a robust Type 2 surge protection device (SPD) engineered to safeguard three-phase low-voltage electrical installations against transient overvoltages caused by lightning activity and switching events. As part of the trusted Mersen Surge-Trap® Pluggable STPT2 Series, it delivers dependable surge protection for demanding industrial and commercial electrical systems.
Featuring a 30 kA maximum discharge current (Imax), 750 V AC maximum continuous operating voltage (Uc), pluggable modular construction and an integrated remote indication contact, this SPD enables quick maintenance while allowing remote monitoring of its operational status.
Designed for 690 V IT and 690 / 1000 V TNC three-phase systems with a 3+0 configuration, the STPT2-30K750V-3PM is ideal for protecting industrial automation equipment, renewable energy installations, machine control systems and critical electrical infrastructure.
Type 2 surge protection devices help protect electrical installations from transient overvoltages before they reach valuable connected equipment. This improves operational reliability, reduces unplanned downtime and extends the service life of electrical assets.
The Mersen Surge-Trap® STPT2 Series combines dependable surge protection with pluggable replaceable cartridges, remote monitoring capability and compact DIN rail installation, making it ideal for industrial switchboards and high-voltage distribution systems.
| Voltage | 000 V |
|---|---|
| Phase | Three Phase |
| Manufacturer | Mersen |
| Series | Surge-Trap® Pluggable STPT2 Series |
| Model | STPT2-30K750V-3PM |
| Item number | 83020103 |
| Product type | Type 2 Surge Protection Device |
| SPD type | Type 2 / Class II |
| Maximum discharge current (Imax) | 30 kA (8/20 μs) |
| Nominal discharge current (In) | 15 kA (8/20 μs) |
| Nominal operating voltage | 690 V IT / 690-1000 V TNC |
| Maximum continuous operating voltage (Uc) | 750 V AC |
| System configuration | 3+0 TNC |
| Number of poles | 3 |
| Module width | 3 modules |
| Format | Pluggable |
| Remote indication | Yes |
| Mounting type | DIN rail |
| Short circuit withstand | 25 kA |
| Maximum back-up fuse | 80 A gG |
| Protection rating | IP20 |
| RoHS compliant | Yes |
| EAN / UPC | 8435297849421 |
| HS Code | 85363090 |
| Country of Manufacture | Spain |
It protects three-phase electrical installations from transient overvoltages caused by lightning strikes and electrical switching events.
The STPT2-30K750V-3PM is a Type 2 / Class II surge protection device for industrial and commercial electrical distribution systems.
The device provides a 30 kA maximum discharge current (Imax) with a nominal discharge current of 15 kA.
Yes. The STPT2-30K750V-3PM incorporates a remote indication contact that allows the operational status of the SPD to be monitored remotely.
It is designed for 690 V IT and 690/1000 V TNC three-phase electrical systems.
Mersen Surge-Trap® surge protection devices are trusted by electrical engineers, panel builders and maintenance professionals to protect critical industrial electrical installations against damaging transient overvoltages.
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2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...